- Six different activities to show understanding of proofs by Nanci Smith (DI Consultant). Geometry Introduction of Formal Proofs.doc - Links to an outside flipchart from Promethean Planet to help students to learn the T-charts and formal proofs.
Polygons Math_10_Geometry_Polygons_CSO MOG 3 14.ppt - Teaches the definition of polygon and the relationship between teh number of sides and the sum of the interior angles.
Triangles Math_10_Geometry_Triangle Altitudes_CSO MOG 3 18.ppt - Allows students the opportunity to use the annotation pen to draw an altitude on four different triangles before using an interactivity to have all three altitudes of a triangle drawn. The interactivity allows students to drag the vertices of the triangle to see the change in the altitudes.
- Sternberg activity to show knowledge of terms about circles by Nanci Smith (DI Consultant)
EulerLine Geometry Euler Line.doc - Lesson covering paper folding of triangles to discover the orthocenter, incenter, circumcenter, and centroid. Interactive websites are linked to allow the students to see the different points with all types of triangles and the construction of the Euler Line.
Euclid's Five Postulates
Proofs
Polygons
Triangles
Cirlces
Euler Line
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Cabell County Wiki Home Page ............ Mathematics Main Page